### -*- coding: utf-8 -*- #############################################
# Разработано Паэглит Арвидом (http://arvid.dp.ua/)
# Все права защищены, 2007
#
# Developed by Paeglit Arvid (http://arvid.dp.ua/)
# All right reserved, 2007
#######################################################################

"""Interfaces of expo

$Id: interfaces.py 64 2007-12-28 18:34:23Z Arvi3D $
"""
__author__  = "Arvid"
__license__ = "GPL"
__version__ = "$Revision: 64 $"
__date__ = "$Date: 2007-12-28 20:34:23 +0200 (Fri, 28 Dec 2007) $"

from zope.interface import Interface, Attribute, invariant, Invalid
from zope import schema
from zope.interface import implements
from zope.app.container.constraints import contains, containers

_ = lambda x : x

class IExponential(Interface):

    lambd = schema.Float(
                           title = _(u"Lambda")
                           ,description = _(u"Parameter lambda")
                           ,default = 5.0
                           ,min = 0.0
                           ,required = True
                           )
